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<p>Cellular materials offer exceptional potential for lightweight structures, energy absorption, and tailored mechanical performance. Among polymeric options, nylon stands out for its high strength, durability, and processability in additive manufacturing. This study evaluates the compressive properties of nylon cellular structures based on a hybridization of Diamond and Gyroid topologies. The 12 resulting configurations vary by spatial arrangement (pure, core, or sides) and hybridization volume (25%, 50%, and 75%). Samples were fabricated via Multi Jet Fusion and tested under quasi-static compression. Results demonstrate that topology and hybridization patterns significantly influence stiffness, peak strength, and deformation modes. Hybrid configurations displayed a transition between deformation mechanisms, with Gyroid-based inclusions increasing stiffness in Dyroid lattices by up to 4 times. While pure Gyroid structures exhibited the highest mass-specific energy absorption, hybridization proved effective for stabilizing collapse modes and tailoring the stiffness-to-weight ratio. These findings provide design guidelines for optimizing nylon lattices for structural and impact-related applications.</p>

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Additively manufactured hybrid Diamond–Gyroid lattices: mechanical characterization under compressive loads

  • 期刊论文

  • 发表日期：

    2026年5月4日

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  • Amador Chapa,
  • Kamila Valero-Ayala,
  • Valeria Ceja-Morales,
  • Luis Fuentes-Juvera,
  • Mario Martínez-Magallanes,
  • Enrique Cuan-Urquizo

摘要

Cellular materials offer exceptional potential for lightweight structures, energy absorption, and tailored mechanical performance. Among polymeric options, nylon stands out for its high strength, durability, and processability in additive manufacturing. This study evaluates the compressive properties of nylon cellular structures based on a hybridization of Diamond and Gyroid topologies. The 12 resulting configurations vary by spatial arrangement (pure, core, or sides) and hybridization volume (25%, 50%, and 75%). Samples were fabricated via Multi Jet Fusion and tested under quasi-static compression. Results demonstrate that topology and hybridization patterns significantly influence stiffness, peak strength, and deformation modes. Hybrid configurations displayed a transition between deformation mechanisms, with Gyroid-based inclusions increasing stiffness in Dyroid lattices by up to 4 times. While pure Gyroid structures exhibited the highest mass-specific energy absorption, hybridization proved effective for stabilizing collapse modes and tailoring the stiffness-to-weight ratio. These findings provide design guidelines for optimizing nylon lattices for structural and impact-related applications.